抗组胺剂，是一种有效的选择性组胺 1 (H1) 拮抗剂。Azelastine hydrochloride 可用于过敏性鼻炎、哮喘、糖尿病高脂血症和 SARS-CoV-2 的研究。
Azelastine HCl is a potent and selective H1-receptor antagonist, with antiallergic effects related to histamine antagonism, and further antiallergic and anti-inflammatory effects unrelated to H1-receptor binding. Azelastine HCl is an activator of NF-kB activator. Azelastine hydrochloride has been used in a study to investigate the potential of polymeric microspheres for treatment of allergic conjunctivitis. Azelastine is shown to block secretion of IL-6, IL-8, and TNF alpha from mast cells by inhibiting NF-κB activation.